xen/balloon: Move dec_totalhigh_pages() from __balloon_append() to balloon_append()
authorDaniel Kiper <dkiper@net-space.pl>
Mon, 28 Mar 2011 09:35:59 +0000 (11:35 +0200)
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Wed, 30 Mar 2011 15:54:51 +0000 (11:54 -0400)
commit09ca132a8e469f87504899b4016c7517511887d0
tree200a42859eb84ef88eefe2b5f5d4e798ce44a1a7
parent83be7e52d46a5b3a9955a38a9597bf1de1851ea7
xen/balloon: Move dec_totalhigh_pages() from __balloon_append() to balloon_append()

git commit 9be4d4575906af9698de660e477f949a076c87e1 (xen: add
extra pages to balloon) splited balloon_append() into two functions
(balloon_append() and __balloon_append()) and left decrementation
of totalram_pages counter in __balloon_append(). In this situation
if __balloon_append() is called on i386 with highmem page referenced
then totalhigh_pages is decremented, however, it should not. This
patch corrects that issue and moves dec_totalhigh_pages() from
__balloon_append() to balloon_append(). Now totalram_pages and
totalhigh_pages are decremented simultaneously only when
balloon_append() is called.

Acked-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: Daniel Kiper <dkiper@net-space.pl>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
drivers/xen/balloon.c